S

Salmon EDU

Worksheet Builder · Math Edition v1.3
AionSystem · Educational Division
Theme
Template
Quick Templates
Click a template to load it instantly
Addition
Subtraction
Multiplication
Division
Linear Equations
Mixed Ops
Fractions (Like)
Fractions (Unlike)
Percentages
Order of Operations
Exponents
Interleaved Practice
Custom
📄 Worksheet Info
Problem Pattern
Options
Explanation Lines
2 lines for students to show reasoning
Answer Key
Auto-generated on separate section
Student Name & Date Fields
Header lines for student info
Salmon EDU Branding
Small footer credit on printed sheet
Allow Negative Numbers
Enables negative operands. Grade 6–7.
Worksheet Preview 0
📄
Configure your worksheet settings on the left, then click Generate to preview.
Red Team Report — Full Audit History
Every finding, fix, and feature. This log is permanent and public.
4
Passes Run
10
Bugs Fixed
1
Open Limitations
9
Features Added
// Pass 1 — Input Validation Audit  ·  March 2026
✓ RT-PASS1-FIX1 — FIXED: Range Inversion Guard
When aMin > aMax or bMin > bMax, rnd(min, max) receives a negative range. Fixed: explicit guard fires before any problem generates.
✓ RT-PASS1-FIX2 — FIXED: Linear Coefficient Floor (a < 2)
If laMin was set to 1, the generator produced equations like 1x + 5 = 8. Fixed: guard requires a ≥ 2.
✓ RT-PASS1-FIX3 — FIXED: Count = 0 Silent Empty Sheet
If the problem count was cleared or set to 0, the generator looped 0 times producing an empty sheet. Fixed: explicit guard exits with named error.
★ RT-PASS1-BADGE — ADDED: AION Certification Badge
AION certification badge added to footer. This product is certified under the AION Constitutional Stack.
// Pass 2 — Architecture & Visual Standards  ·  March 2026
✓ RT-PASS2-FIX1 — FIXED: Red Team Log in Footer
Red team log moved to dedicated tab — first-class document, reachable in one click.
★ RT-PASS2-FEATURE1 — ADDED: Living Background System
Three-layer animated background: canvas math symbols + CSS mesh gradient + backdrop-filter glass. Theme-aware.
// Pass 3 — v1.3 Feature Audit  ·  March 2026
✓ RT-PASS3-FIX1 — FIXED: Division b=0 Silent Override Resolved
Previously divisor=0 was silently overridden to 1. Fixed: explicit guard with named error.
★ RT-PASS3-FEATURE1 — ADDED: Integers / Negative Numbers Toggle
New toggle: "Allow Negative Numbers." Arithmetic operands may be negative. Division divisor always remains >0.
★ RT-PASS3-FEATURE2 — ADDED: Fractions (6 Sub-Types, GCD Simplification)
6 sub-types. Euclidean GCD reduces all answers to lowest terms. Guards: denominator clamp ≥1; subtraction ≥0.
★ RT-PASS3-FEATURE3 — ADDED: Percentages (3 Forms)
Three forms. Values chosen to guarantee whole-number answers.
★ RT-PASS3-FEATURE4 — ADDED: Order of Operations / PEMDAS
2–4 steps, random parentheses, whole-number results enforced (20 retries + fallback).
★ RT-PASS3-FEATURE5 — ADDED: Exponents (Basic)
Base 2–12, exponent 2–5 hard cap. HTML <sup> superscript in preview and PDF.
★ RT-PASS3-FEATURE6 — ADDED: Interleaved Practice Mode
Fisher-Yates shuffle, no-two-consecutive enforcement, research citation. ≥2 types required.
★ RT-PASS3-FEATURE7 — ADDED: How-To Tab
Complete teacher guide covering all features. Written for teachers, not engineers.
// Pass 4 — Enterprise Math & Logic Audit  ·  March 2026
✓ RT-PASS4-FIX1 — FIXED: Unlike-Denominator Subtraction Wrong Swap
Critical math bug: swapped only numerators, not full fraction pairs. Fixed: swap full pairs [n1,d1,n2,d2]=[n2,d2,n1,d1].
✓ RT-PASS4-FIX2 — FIXED: PEMDAS ASCII Hyphen-Minus
Split into display array (Unicode −) and eval array (ASCII -). Consistent with all other generators.
✓ RT-PASS4-FIX3 — FIXED: Division with Negatives Dividend Not Formatted
fmtNum(a*b, allowNeg) now applied consistently to dividend.
✓ RT-PASS4-FIX4 — FIXED: Canvas Particle Density Frozen After Resize
Resize handler now rebuilds particle array at new density calculation.
✓ RT-PASS4-FIX5 — FIXED: Linear Equation Displays "ax + 0 = c"
Three-branch display: b=0, b>0, b<0. Clean output in all cases.
✓ RT-PASS4-FIX6 — FIXED: PEMDAS Fallback Used 2-Step Expression Regardless of Step Count
Fallback now builds expression matching configured step count.
Red Team Pass 4: March 2026  ·  6 bugs fixed   |   Auditor: ALBEDO  ·  Enterprise math audit
// Known Limitations — Open
⚠ LIMITATION-2 — OPEN: Custom Pattern eval() Security Surface
Custom pattern parser uses eval() with character whitelist. Acceptable for local/personal use. If hosted: replace with proper expression parser. LIMITATION-1 (division b=0) resolved in Pass 3.
Red Team Pass 1–4: March 2026  ·  Total: 10 bugs fixed · 9 features · 1 open limitation  ·  Architect: Sheldon K. Salmon × ALBEDO  ·  Stack: AION Constitutional Stack
? How To Use — Salmon EDU Worksheet Builder v1.3
A complete guide for teachers. Everything in one place.

📄 What This Tool Is

Single HTML file, runs in your browser. No internet required after first load. No login, no subscription. Generate unlimited worksheets, save templates as JSON, export to PDF via browser print dialog.

★ Quick Templates

Click any chip to load a pre-configured worksheet instantly. Adjust any setting before generating.

✎ Problem Types

  • Addition / Subtraction / Multiplication / Division: Standard arithmetic. Division always produces whole-number answers.
  • Linear Equation (ax + b = c): Coefficient a always ≥2.
  • Fractions: Six sub-types. All answers auto-simplified.
  • Percentages: Three forms. Values guarantee whole-number answers.
  • Order of Operations (PEMDAS): 2–4 steps, random parentheses, whole-number results.
  • Exponents (Basic): Base 2–12, exponent 2–5 hard cap.
  • Mixed / Interleaved / Custom: See below.

★ Interleaved Practice

Select at least 2 types. Problems are shuffled so no two of the same type appear consecutively.

Why interleaving works

Interleaving has been shown to double test scores vs blocked practice (Taylor & Rohrer, 2010). It forces students to identify which strategy applies — the key skill tested on exams.

📄 Toolbar

  • Save JSON: Save current settings as a .json file.
  • Load JSON: Restore all settings from a saved file.
  • PDF Export: Opens print-ready window — choose "Save as PDF."
  • Print: Directly triggers print, hiding all UI.
Teacher Copy Tip

Generate with Answer Key ON → print once (teacher copy). Turn Answer Key OFF → print the class set.